“…4 Gastrointestinal vascular malformations are a hallmark and typically present in adolescence, 8,9 and they frequently bleed. 9 The skin vascular malformations are typically present at birth 12 and multiple other organ systems involvement has been described, including muscle, bone, 8,10 central nervous system, 14,15,18 visceral pericardium, 4 thyroid, heart, and lung. 9 Paravertebral muscle involvement can extend to the spinal canal.…”